Reman Horton DM Advantage 2 speed fan hub and clutch assy, 7.5 diameter 10PK serpentine pulley, 8.5 overall length, 2.55 belt groove location, 3.5 bolt circle, 2.56 dia fan pilot, 0.81 long 3/8-24 fan studs, 4 bolt mounting, 3.54 high vertical mounting distance, 5.31 wide horizontal mounting distance; Horton rebuild quick super kit Q995575 or Kit Masters rebuild kit 14-256(on/off) & 24-256(2spd); Horton on/off version no longer available replaced by this 2spd model; Kit Masters on/off reman assembly = 99849